Item description:

1. Disenchanted pull the enchanted diamond sword from the chest use the grind stone to remove the enchantment and you will unlock the trophy.

2. Kill the Beast! Equip the diamond armor and then use the spawn egg in the chest to spawn one. Kill it and the trophy will pop

To get the other 4 trophies use this guide. Pull the map from chest and go to the coordinates in the description. Once you get the pillager captain back to town kill him you will unlock I've got a bad feeling about this. After killing him the pillager raid will start which will unlock We're being attacked! Then ring the bell with the raid going on in town and you will unlock Sound the Alarm!

For Buy Low, Sell High after the pillager raid try to trade with one of the villagers you will see a slash through the price give them the item needed. There is a villager in a hole in the village I dug him into you should be able to trade him paper.

A couple minutes walk from here, at coordinates X:-60, Y:70, Z:499, is another village with a Pillager Outpost. You will need to lure a Pillager Captain from his outpost back to the first village or else the raid won't work properly. Credit to harrypotter1997 for this world.